1. (2023高三上·上海期末) Fill in each blank with a proper word chosen from the box. Each word can be used only once. Note that there is one word more than you need.

A. spare     B. respectable  C. exhaust.  D. accidental. E. designed. F. critics G. advocates   H. mine I. commercially  J. relieving K. theoretically

Major companies are already in pursuit of commercial applications of the new biology. They dream of placing enzymes(酶)in the automobile to monitor and send data on pollution to a microprocessor that will then adjust the engine. They speak of what The New York Times calls "Metal-hungry microbes(微生物)that might be used to valuable trace metals from ocean water." They have already demanded and won the right to patent new life forms.

 Nervous , including many scientists, worry that there is corporate, national, international, and inter-scientific competition in the entire biotechnological field. They create images not of oil spills, but of "microbe spills"that could spread disease and destroy entire populations. The creation and release of extremely poisonous microbes, however, is only one cause for alarm. Completely rational and scientists are talking about possibilities that stagger(动摇)the imagination.

 Should we breed people with cow-like stomachs so they can digest grass and hay, thereby the food problem by modifying us to eat lower down on the food chain? Should we biologically alter workers to fit the job requirement, for example, creating pilots with faster reaction time or assembly-line workers to do our monotonous work for us? Should we use genetic forecasting to pre-eliminate "unfit" babies? Should we grow reserve organs for ourselves, each of us having, as it were, a "savings bank" full of kidneys, livers or hands?

 Wild as these notions may sound, everyone has its (and opposers) in the scientific community as well as its striking commercial application. As two critics of genetic engineering, Jeremy Rifkin and Ted Howard, state in their book Who Should Play God? "Broad scale genetic engineering will probably be introduced to America much the same way as assembly lines, automobiles, vaccines, computers and all the other technologies. As each new genetic advance becomes practical, a new consumer need will be exploited and a market for the new technology will be created."